Journal
EXPERIMENTAL ANIMALS
Volume 49, Issue 4, Pages 301-304Publisher
INT PRESS EDITING CENTRE INC
DOI: 10.1538/expanim.49.301
Keywords
fixative; immunohistochemical; testosterone
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We compared the effect of two fixatives, Bouin's fixative and neutralized buffered 4% formaldehyde (10% formalin), for immunolocalization of testosterone in the testes of cynomolgus monkeys, mice and rats. In the samples fixed with Bouin's fixative, immunoreactive testosterone was defected as intense deposits in the cytoplasm of Leydig cells of monkeys and mice. Immunoreactive testosterone was detected not only in Leydig cells of rats but also moderately shown within tubules. Immunoreactive testosterone could not be detected in the testes of monkeys, mice or rats fixed with neutralized buffered formalin because of the poor morphology caused by the fixative. It is concluded that Bouin's fixative is a suitable fixative for immunolocalization of testosterone in the testes of cynomolgus monkeys, mice and rats.
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